Does SEIS tax relief still apply if I invest in a startup through a crowdfunding platform?

Full answer

Equity crowdfunding platforms have made SEIS and EIS investing accessible to a much wider range of investors, but it is worth understanding that the platform itself does not change the underlying tax relief rules -- what matters is whether the company and shares qualify. **How SEIS relief works regardless of investment route** SEIS gives individual investors 50% Income Tax relief on investments up to £200,000 per tax year in qualifying early-stage companies, along with Capital Gains Tax exemption on any eventual gain (if shares are held for at least 3 years) and SEIS-specific loss relief if the investment fails. These reliefs attach to the SHARES issued by the qualifying company to the investor, regardless of whether the investor found and paid for those shares directly through the company, through a traditional stockbroker, or via an online equity crowdfunding platform. **What actually determines SEIS eligibility** Eligibility depends on the underlying company meeting SEIS qualifying conditions (being a genuinely new, small trading company under a certain age and gross asset/employee limits, carrying out a qualifying trade, not raising more than the SEIS lifetime funding cap) and the specific SHARES issued meeting requirements (new ordinary shares, not carrying preferential rights beyond limited permitted features, held for the required minimum period) -- none of these conditions are affected by using a crowdfunding platform as the investment route. **Why platforms are popular for SEIS/EIS investing** Crowdfunding platforms have made it much easier for retail investors to find and invest smaller amounts in a diversified range of SEIS/EIS-eligible startups (rather than needing personal connections to individual founders or large minimum investment amounts historically associated with angel investing), and many platforms specifically pre-screen the companies listed to confirm they have obtained (or expect to obtain) HMRC advance assurance that the investment should qualify for SEIS/EIS relief -- though advance assurance is not a cast-iron guarantee and the final determination is made when the company actually issues the compliance certificate (form SEIS3) after the shares are issued. **The SEIS3 compliance certificate** Regardless of the investment route, an investor cannot actually claim SEIS relief on their Self Assessment return until the company has issued them a form SEIS3 compliance certificate, confirming HMRC has agreed the investment qualifies -- crowdfunding platforms typically help facilitate obtaining and distributing this certificate to investors once available, but the investor still needs to actively claim the relief through their own tax return once they have it. **Fees and their tax treatment** Some equity crowdfunding platforms charge the investor a platform fee (in addition to, or instead of, charging the company raising funds) -- these fees are generally NOT part of the qualifying SEIS investment amount for relief purposes; only the amount actually subscribed for qualifying shares counts, so an investor should check the platform's fee structure to understand exactly how much of their total payment genuinely goes towards SEIS-qualifying shares. **Worked example** An investor puts £5,000 into a seed-stage tech startup via a well-known equity crowdfunding platform, receiving new ordinary shares that meet all SEIS conditions. Because the underlying investment qualifies for SEIS regardless of the platform used, the investor can claim 50% Income Tax relief (£2,500) once they receive their SEIS3 certificate from the company, exactly as they could have done investing the same amount directly with the company outside of a crowdfunding platform. **Practical tip** Before investing via a crowdfunding platform expecting SEIS/EIS relief, check whether the specific company has HMRC advance assurance (most reputable platforms display this clearly) and understand that formal relief still depends on receiving the SEIS3/EIS3 certificate after the investment completes, not simply on the platform's marketing describing the opportunity as "SEIS eligible."

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